[{"vendor":"cisco","product":"meraki_mx","defaultStatus":"unknown","cpes":["cpe:2.3:h:cisco:meraki_mx:-:*:*:*:*:*:*:*"],"versions":[{"version":"0","status":"affected"}]},{"vendor":"cisco","product":"meraki_z1","defaultStatus":"unknown","cpes":["cpe:2.3:h:cisco:meraki_z1:-:*:*:*:*:*:*:*"],"versions":[{"version":"0","status":"affected"}]}]

{"timestamp":"2024-10-02T18:59:14.837416Z","id":"CVE-2024-20502","options":[{"exploitation":"none"},{"automatable":"yes"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}

[{"vendor":"Cisco","product":"Cisco Meraki MX Firmware","versions":[{"version":"N/A","status":"affected"}]}]

A vulnerability in the Cisco AnyConnect VPN server of Cisco Meraki MX and Cisco Meraki Z Series Teleworker Gateway devices could allow an unauthenticated, remote attacker to cause a DoS condition on an affected device.

This vulnerability is due to insufficient resource management while establishing SSL VPN sessions. An attacker could exploit this vulnerability by sending a series of crafted HTTPS requests to the VPN server of an affected device. A successful exploit could allow the attacker to cause the Cisco AnyConnect VPN server to stop accepting new connections, preventing new SSL VPN connections from being established. Existing SSL VPN sessions are not impacted.
Note: When the attack traffic stops, the Cisco AnyConnect VPN server recovers gracefully without requiring manual intervention.

A vulnerability in the Cisco AnyConnect VPN server of Cisco Meraki MX and Cisco Meraki Z Series Teleworker Gateway devices could allow an unauthenticated, remote attacker to cause a DoS condition on an affected device.

 This vulnerability is due to insufficient resource management while establishing SSL VPN sessions. An attacker could exploit this vulnerability by sending a series of crafted HTTPS requests to the VPN server of an affected device. A successful exploit could allow the attacker to cause the Cisco AnyConnect VPN server to stop accepting new connections, preventing new SSL VPN connections from being established. Existing SSL VPN sessions are not impacted.

 Note: When the attack traffic stops, the Cisco AnyConnect VPN server recovers gracefully without requiring manual intervention.

NIST AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

NIST CWE-400

AND
     OR
          *cpe:2.3:o:cisco:meraki_mx100_firmware:*:*:*:*:*:*:*:* versions from (including) 16.2 up to (excluding) 18.211.2
     OR
          cpe:2.3:h:cisco:meraki_mx100:-:*:*:*:*:*:*:*

AND
     OR
          *cpe:2.3:o:cisco:meraki_mx105_firmware:*:*:*:*:*:*:*:* versions from (including) 16.2 up to (excluding) 18.211.2
     OR
          cpe:2.3:h:cisco:meraki_mx105:-:*:*:*:*:*:*:*

AND
     OR
          *cpe:2.3:o:cisco:meraki_mx250_firmware:*:*:*:*:*:*:*:* versions from (including) 16.2 up to (excluding) 18.211.2
     OR
          cpe:2.3:h:cisco:meraki_mx250:-:*:*:*:*:*:*:*

AND
     OR
          *cpe:2.3:o:cisco:meraki_mx400_firmware:*:*:*:*:*:*:*:* versions from (including) 16.2 up to (excluding) 18.211.2
     OR
          cpe:2.3:h:cisco:meraki_mx400:-:*:*:*:*:*:*:*

AND
     OR
          *cpe:2.3:o:cisco:meraki_mx450_firmware:*:*:*:*:*:*:*:* versions from (including) 16.2 up to (excluding) 18.211.2
     OR
          cpe:2.3:h:cisco:meraki_mx450:-:*:*:*:*:*:*:*

AND
     OR
          *cpe:2.3:o:cisco:meraki_mx600_firmware:*:*:*:*:*:*:*:* versions from (including) 16.2 up to (excluding) 18.211.2
     OR
          cpe:2.3:h:cisco:meraki_mx600:-:*:*:*:*:*:*:*

AND
     OR
          *cpe:2.3:o:cisco:meraki_mx64_firmware:*:*:*:*:*:*:*:* versions from (including) 17.6.0 up to (excluding) 18.211.2
     OR
          cpe:2.3:h:cisco:meraki_mx64:-:*:*:*:*:*:*:*

AND
     OR
          *cpe:2.3:o:cisco:meraki_mx64w_firmware:*:*:*:*:*:*:*:* versions from (including) 16.2 up to (excluding) 18.211.2
     OR
          cpe:2.3:h:cisco:meraki_mx64w:-:*:*:*:*:*:*:*

AND
     OR
          *cpe:2.3:o:cisco:meraki_mx65_firmware:*:*:*:*:*:*:*:* versions from (including) 17.6.0 up to (excluding) 18.211.2
     OR
          cpe:2.3:h:cisco:meraki_mx65:-:*:*:*:*:*:*:*

AND
     OR
          *cpe:2.3:o:cisco:meraki_mx65w_firmware:*:*:*:*:*:*:*:* versions from (including) 16.2 up to (excluding) 18.211.2
     OR
          cpe:2.3:h:cisco:meraki_mx65w:-:*:*:*:*:*:*:*

AND
     OR
          *cpe:2.3:o:cisco:meraki_mx67_firmware:*:*:*:*:*:*:*:* versions from (including) 16.2 up to (excluding) 18.211.2
     OR
          cpe:2.3:h:cisco:meraki_mx67:-:*:*:*:*:*:*:*

AND
     OR
          *cpe:2.3:o:cisco:meraki_mx67c_firmware:*:*:*:*:*:*:*:* versions from (including) 16.2 up to (excluding) 18.211.2
     OR
          cpe:2.3:h:cisco:meraki_mx67c:-:*:*:*:*:*:*:*

AND
     OR
          *cpe:2.3:o:cisco:meraki_mx67w_firmware:*:*:*:*:*:*:*:* versions from (including) 16.2 up to (excluding) 18.211.2
     OR
          cpe:2.3:h:cisco:meraki_mx67w:-:*:*:*:*:*:*:*

AND
     OR
          *cpe:2.3:o:cisco:meraki_mx68_firmware:*:*:*:*:*:*:*:* versions from (including) 16.2 up to (excluding) 18.211.2
     OR
          cpe:2.3:h:cisco:meraki_mx68:-:*:*:*:*:*:*:*

AND
     OR
          *cpe:2.3:o:cisco:meraki_mx68cw_firmware:*:*:*:*:*:*:*:* versions from (including) 16.2 up to (excluding) 18.211.2
     OR
          cpe:2.3:h:cisco:meraki_mx68cw:-:*:*:*:*:*:*:*

AND
     OR
          *cpe:2.3:o:cisco:meraki_mx68w_firmware:*:*:*:*:*:*:*:* versions from (including) 16.2 up to (excluding) 18.211.2
     OR
          cpe:2.3:h:cisco:meraki_mx68w:-:*:*:*:*:*:*:*

AND
     OR
          *cpe:2.3:o:cisco:meraki_mx75_firmware:*:*:*:*:*:*:*:* versions from (including) 16.2 up to (excluding) 18.211.2
     OR
          cpe:2.3:h:cisco:meraki_mx75:-:*:*:*:*:*:*:*

AND
     OR
          *cpe:2.3:o:cisco:meraki_mx84_firmware:*:*:*:*:*:*:*:* versions from (including) 16.2 up to (excluding) 18.211.2
     OR
          cpe:2.3:h:cisco:meraki_mx84:-:*:*:*:*:*:*:*

AND
     OR
          *cpe:2.3:o:cisco:meraki_mx85_firmware:*:*:*:*:*:*:*:* versions from (including) 16.2 up to (excluding) 18.211.2
     OR
          cpe:2.3:h:cisco:meraki_mx85:-:*:*:*:*:*:*:*

AND
     OR
          *cpe:2.3:o:cisco:meraki_mx95_firmware:*:*:*:*:*:*:*:* versions from (including) 16.2 up to (excluding) 18.211.2
     OR
          cpe:2.3:h:cisco:meraki_mx95:-:*:*:*:*:*:*:*

AND
     OR
          *cpe:2.3:o:cisco:meraki_vmx_firmware:*:*:*:*:*:*:*:* versions from (including) 16.2 up to (excluding) 18.211.2
     OR
          cpe:2.3:h:cisco:meraki_vmx:-:*:*:*:*:*:*:*

AND
     OR
          *cpe:2.3:o:cisco:meraki_z3_firmware:*:*:*:*:*:*:*:* versions from (including) 16.2 up to (excluding) 18.211.2
     OR
          cpe:2.3:h:cisco:meraki_z3:-:*:*:*:*:*:*:*

AND
     OR
          *cpe:2.3:o:cisco:meraki_z3c_firmware:*:*:*:*:*:*:*:* versions from (including) 16.2 up to (excluding) 18.211.2
     OR
          cpe:2.3:h:cisco:meraki_z3c:-:*:*:*:*:*:*:*

AND
     OR
          *cpe:2.3:o:cisco:meraki_z4_firmware:*:*:*:*:*:*:*:* versions from (including) 16.2 up to (excluding) 18.211.2
     OR
          cpe:2.3:h:cisco:meraki_z4:-:*:*:*:*:*:*:*

AND
     OR
          *cpe:2.3:o:cisco:meraki_z4c_firmware:*:*:*:*:*:*:*:* versions from (including) 16.2 up to (excluding) 18.211.2
     OR
          cpe:2.3:h:cisco:meraki_z4c:-:*:*:*:*:*:*:*

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-meraki-mx-vpn-dos-QTRHzG2 No Types Assigned

https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-meraki-mx-vpn-dos-QTRHzG2 Vendor Advisory

A vulnerability in the Cisco AnyConnect VPN server of Cisco Meraki MX and Cisco Meraki Z Series Teleworker Gateway devices could allow an unauthenticated, remote attacker to cause a DoS condition on an affected device.

This vulnerability is due to insufficient resource management while establishing SSL VPN sessions. An attacker could exploit this vulnerability by sending a series of crafted HTTPS requests to the VPN server of an affected device. A successful exploit could allow the attacker to cause the Cisco AnyConnect VPN server to stop accepting new connections, preventing new SSL VPN connections from being established. Existing SSL VPN sessions are not impacted.
Note: When the attack traffic stops, the Cisco AnyConnect VPN server recovers gracefully without requiring manual intervention.

Cisco Systems, Inc. AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:L

Cisco Systems, Inc. CWE-400

Cisco Systems, Inc. https://sec.cloudapps.cisco.com/security/center/content/CiscoSecurityAdvisory/cisco-sa-meraki-mx-vpn-dos-QTRHzG2 [No types assigned]